Table of Contents
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Service Manual
LCD TV
CHASSIS :
Model :
LX32L1***
LX32L2***
LM32L1***
LM32L2***
LP32L1***
LP32L2***
HY-LCD32L2
HY-LCD32R1
LX42L1***
LX42L2***
LM42L1***
LM42L2***
LP42L1***
LP42L2***
HY-LCD42L2F
HY-LCD42R1F
Caution
: In this Manual, some parts can be changed for improving. their
performance without notice in the parts list. So, if you need the
latest parts information, please refer to PPL(Parts Price List)in
Service Information Center.
S/M NO. : TSLM10MEF0
SL-100XB,SL-110XB
SL-100MB,SL-110MB
JUNE 2011
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Table of Contents
Troubleshooting
Related Manuals for Daewoo LX32L1 Series
Summary of Contents for Daewoo LX32L1 Series
- Page 1 S/M NO. : TSLM10MEF0 Service Manual LCD TV CHASSIS : SL-100XB,SL-110XB SL-100MB,SL-110MB Model : LX32L1*** LX32L2*** LM32L1*** LM32L2*** LP32L1*** LP32L2*** HY-LCD32L2 HY-LCD32R1 LX42L1*** LX42L2*** LM42L1*** LM42L2*** LP42L1*** LP42L2*** HY-LCD42L2F HY-LCD42R1F Caution : In this Manual, some parts can be changed for improving. their performance without notice in the parts list.
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Page 2: Table Of Contents
Contents 1.Safety Precaution 2.Preliminary Troubleshooting 3.Product Specification 4.Service Mode 5.Hardware Trouble shooting 1) Power Supply Trouble 2) Display Trouble (exceptional screen) 3) Display Trouble (white screen) 4) Display Troubl (black screen) 5) Audio Trouble (No sound) 6) Function Trouble (TV video) 7) Function Trouble (PC) 8) Function Trouble (SCART,HDMI,YPbPr,DVB/TV) 6.Main Board Layout... -
Page 3: Safety Precaution
1. Safety Precaution (1) When moving or laying down a LCD Set, at least two people must work together. Avoid any impact towards the LCD Set. (2) Do not leave a broken LCD Set on for a long time. To prevent any further damages, after checking the condition of the broken Set, make sure to turn the power (AC) off. -
Page 4: Preliminary Troubleshooting
2. Preliminary Troubleshooting 1) LCD TV does not response or remote controller does not work. - Check the power cord to be plugged. - Check the battery of the remote controller. 2) Sound is discontinuous or broken sometimes. - Set the sound effect into 'MONO'. - Set the [SOUND] ->... -
Page 5: Product Specification
3. Product Specification 32 INCH 42 INCH CHASSIS 32L1/ 32L2 42L1 / 42L2 South America Middle East South America Middle East LTA320AP27 LTA320AP27 LC420WUN-SBA1 LC420WUN-SBA1 Model name LTA320AN01 LTA320AN01 LC420WUN-SCA1 LC420WUN-SCA1 LCD Panel Pixel Pitch (mm x mm) 0.51075x0.51075 0.51075x0.51075 0.4845x0.484 0.4845x0.4845 Brightness (cd/m2) -
Page 6: Service Mode
4. Service mode. Using the Service Remote controller(R-74S01 or R-34SVC ), you can enter service mode directly. i r c Gumi Ch Map Write To set Gumi factory channels directly To set sound(display in sequence) Perss S3 key again and again, Volume Test change like this: ‘Volume Min’... -
Page 7: Hardware Trouble Shooting
5. Hardware Trouble shooting 5-1) Power Supply Trouble Check E1 for 5V and E2 for 3.3V output ? Put on the TV, Check for C10 ,C16,E5 E3 for 5V Check power line or power supply output Check if U2 for 3.3V and U3 for 2.5V output? Check power board for 5V output... -
Page 8: Display Trouble (Exceptional Screen)
Hardware Trouble shooting 5-2) Display Trouble (exceptional screen) Exceptional screen Check if the cable is correct and connected tightly and connected tightly Check if the LCD panel is OK Check if the output circuit from U12 to the jack to panel are normal Change the cable for panel Change or repair the damage... -
Page 9: Display Trouble (White Screen)
Hardware Trouble shooting 5-3) Display Trouble (white screen) White screen Check if the voltage of panel power supply is normal (depend on panel) supply is normal (depend on panel) Is there voltage on grid of Is there output signal Q8/3407 can changed from U12 (12 0V or 5V~0) CN4 is ill-connected... -
Page 10: Display Troubl (Black Screen)
Hardware Trouble shooting 5-4) Display Trouble (black screen) Black screen Check if the voltage on CN3/BLON is 5V Check if the power supply for inverter is normal Check the control circuit from Repair the power supply The inverter is damaged BLON to U12 or U12 is damaged -10-... -
Page 11: Audio Trouble (No Sound)
Hardware Trouble shooting 5-5)Audio Trouble(No sound) No sound Is there audio input signal Check if the setting of volume and MUTE are normal Check if CN22 has output signal Check if the power supply of U13/R2A15122FP –pin13 –pin14 >11V Check if the voltage of Check if the voltage of U13-pin34≥2.5V Check if U13-pin19,32... -
Page 12: Function Trouble (Tv Video)
Hardware Trouble shooting 5-6) Function Trouble (TV video) TV can’t search any channel/no picture Confirm if the RF cable do have signal cable do have signal Check if T2-pin7 for 5V Check if T2-pin5,6 has C signal Check if t1-pin9&10have signal Check if T2-pin2 for variational voltage within 1.8V~4.3V Check the circuit... -
Page 13: Function Trouble (Pc)
Hardware Trouble shooting 5-7) Function Trouble (PC) PC mode Picture is not Missing color, Picture No signal in center deflection color dithering Check if the R.G.B Check if the signal of input signal of U12 is normal V-sync,H-sync is OK Do “reset”... -
Page 14: Function Trouble (Scart,Hdmi,Ypbpr,Dvb/Tv)
Hardware Trouble shooting 5-8) Function Trouble (SCART,HDMI,YPbPr,DVB/TV) SCART RGB .SCART Video. HDMI,S-VIDEO,CVBS HDMI,S-VIDEO CVBS does not Missing color, does not has the signal has the signal deflection color deflection color has the signal Check if the Check if R.G.B input k if R G B i U12/6M181 i 44 U12/6M181-pin44... -
Page 15: Main Board Layout
6. Main Board Layout 6-1) Main Board layout of South America -15-... -
Page 16: Main Board Layout Of Middle-East
Main Board Layout 6-2) Main Board layout of Middle-East -16-... -
Page 17: Features Of Main Board
7.Features of Main board MST6M181VS(without TELETEXT and NICAM) CHIPSET /MST6E181V (with TELETEXT and NICAM) MARKET AREA Asia-Pacific, Middle-East or South America OSD LANGUAGE Middle-East : English, Germany, Espanol, Arabic, Romania, France South America :English, French, Spanish, Portuguese Panel Type Interface Single/Dual LVDS Interface PANEL Max Resolution... - Page 18 Features of Main board Ω × INPUT TERMINALS Component1 & Component1 5 RCA terminals(green, blue, red, Audio red, white) RCA terminals(green, blue, red) CVBS1 & Component2 & S-Video 2 RCA terminals( red, white) Audio OUTPUT AV (CVBS2) Out 3 RCA terminals(yellow, red, white) Coaxial(optional) 1 RCA terminal(orange) USB MULTIMEDIA PLAYBACK FORMAT...
- Page 19 Features of Main board ELECTRICAL CHARACTERISTICS & REQUIREMENTS Ripple Power Supply Startup Rise Symbol Voltage Range Voltage Mode Current Time Time @25 ℃ ℃ 24V/12V/ 22V~25V 1000mA 240mV ≤ 100ms ≤ 50ms CN2(10PIN/2.54): MAIN POWER SUPPLY CONNECTOR SYMBOL DESCRIPTION Ground +5V Power Supply for Panel Main +5V Power Supply CN3 (6PIN/2.0): INVERTER CONNECTOR...
- Page 20 Features of Main board CN21(2 × × 20PIN/2.0): LVDS INTERFACE NOTE: PIN31~40 are optional. The connector or each PIN can refer to the panel specification. SYMBOL DESCRIPTION VSEL VSEL Power Supply for Panel VSEL Ground Ground Ground Ground C SCL C SDA -20-...
- Page 21 Features of Main board CN22 (4PIN/2.54): SPEAKER CONNECTOR SYMBOL DESCRIPTION Ground CN24(4PIN/2.54): AMPLIFIER POWER SUPPLY CONNECTOR SYMBOL DESCRIPTION +24V DC Power Supply -21-...
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Page 22: Upgrade Manual By Usb Port
8.Upgrade manual by USB port 1. Upgrading from USB port (build in Mainboard)— At working; 1.1 Copy F/W to USB disk, U:/ bin_6m181.bin (FileNameshouldbe renameto< bin_6m181.bin> and shouldbe set to root directory), plugUSB diskwhenTV running. 1.2 Run TV, <Menu> key==> choice OPTION==> Sotfware Update(USB)==>Enter 1.3 TV will be auto‐restart after upgrading succeful. -
Page 23: Schematic
9. Schematic 1) 32" POWER Schematic +24V +24V/2.8A VCC2 +12V +12V/2.5A VCC1 PFC-STOP DISABLE LINE STBY ISEN RFMIN +5VSB CON2 +24V VCC2 +24V +12V ON/OFF +5VSB +5VSB VCC1 +5VSB ON/OFF 5V3.0A +12V +24V 9,10 : LK-0P416001A : A4 V 1.1 -23-... -
Page 24: 42" Power Schematic
Schematic 2) 42" POWER Schematic +24V CON1 +24V/8A VCC2 +12V +12V/3A VCC1 PFC-STOP DISABLE LINE STBY ISEN RFMIN +5VSB +12V +24V VCC2 ON/OFF +5VSB VCC1 +5VSB +12V +24V +12V +24V ON/OFF Title Size i s i : e t File: Z:\LK-OP425002A\LKP-OP006 v0.2.DDB Drawn By: -24-... -
Page 25: Main Schematic
Schematic 3) MAIN Schematic AZ1117H-3.3(TR)E1 +3.3V_STB +5V_STB NC/100uF-16V-±20%-6*7 105 ℃ 0.1uF-0402-Y5V-+80%-20%-25V 0.1uF-0402-Y5V-+80%-20%-25V 100uF-16V-±20%-6*7 105 ℃ NC/510ohm-0402-±5%-1/16W PDP Interface 10uF-0805-X5R-±10%-6.3V NC/68Kohm-0402-±5%-1/16W 0ohm-0402-±5%-1/16W NC/D-MMBT3904-7-F NC/510ohm-0402-±5%-1/16W NC/4K7ohm-0402-±5%-1/16W PDP_I/O NC/D-MMBT3904-7-F NC/0ohm-0402-±5%-1/16W +12V +5Vpanel POWER ON/OFF +5V_STB AZ1117H-3.3(TR)E1 +3.3V BL_ON 0.1uF-0402-Y5V-+80%-20%-25V + E17 0.1uF-0402-Y5V-+80%-20%-25V 0.1uF-0402-Y5V-+80%-20%-25V Vs_ON_LG 0.1uF-0402-Y5V-+80%-20%-25V Vs_ON_S... - Page 26 Schematic USB5V DUSB2_DM DUSB2_DP NC/4PIN-2.0-D-H-G 10uF-0805-Y5V-+80%-20%-10V ULCE0505A015FR 15Kohm-0402-±5%-1/16W ULCE0505A015FR 15Kohm-0402-±5%-1/16W 33ohm-0402-±5%-1/16W +5V_VID +5V_VID YPbPr_SW1 PC_BI 100ohm-0402-±5%-1/16W 10uF-0805-Y5V-+80%-20%-10V SCART_Bi PC_VSIN 0.1uF-0402-Y5V-+80%-20%-25V PC_RIN PC_GI PC_VSIN/FB 0ohm-0402-±5%-1/16W GZ1005D600T(F) 0.1uF-0402-Y5V-+80%-20%-25V SCART_Gi PC_RI NC/BAT54C-215 SCART-RI NC/10Kohm-0402-±5%-1/16W YPbPr_YIN YPbPr_YI SCART_Gin SCART_Gi PC_GIN PC_GI NC/10Kohm-0402-±5%-1/16W NC/33ohm-0402-±5%-1/16W 75ohm-0402-±5%-1/16W 10uF-0805-Y5V-+80%-20%-10V USB5V USB_5V...
- Page 27 Schematic CN16 HDMI4_RX2+ HDMI4_RX2- HDMI4_RX1+ HDMI4_RX1- HDMI4_RX0+ HDMI4_RX0- HDMI4_RXC+ HDMI4_RXC- HDMI4_SCL HDMI4_SDA HDMI4_5VIN HOTPLUG4 CEC1 2*10PIN-2.0-D-H-M PSX01_V33 +3.3V CN17 C119 C120 C121 C122 HOTPLUG4 R183 RX4_HOTPLUG HDMI4_SDA R184 HDMI4_SCL R185 HDMI4_5VIN HOTPLUG0 HDMI4_5VIN R186 POW4 HDMI0_5VIN GZ1608D121T(F) R187 10uF-0805-X5R-±10%-6.3V RX5V0_DDC_SDA 0.1uF-0402-Y5V-+80%-20%-16V RX5V0_DDC_SCL 0.1uF-0402-Y5V-+80%-20%-16V...
- Page 28 Schematic A_MADR0 A_MDATA0 A_MADR1 A_MDATA1 R210 R211 A_MADR2 A_MDATA2 CN19 A_MADR3 A_MDATA3 A_MADR4 A_MDATA4 RXD/ R212 DVDD_NODIE_1.2V A_MADR5 A_MDATA5 TXD/ R213 A_MADR6 A_MDATA6 A_MADR7 A_MDATA7 4K7ohm-0402-±5%-1/16W C127 A_MADR8 4PIN-2.0-D-H- 4K7ohm-0402-±5%-1/16W A_MADR9 A_MDATA8 100ohm-0402-±5%-1/16W 2.2uF-0603-Y5V-+80%-20%-10V A_MADR11 A_MDATA9 100ohm-0402-±5%-1/16W A_MADR12 A_MDATA10 DQ10 NC/ICVL0518030FR AVDD_DDR_2.5V_ A_MADR10...
- Page 29 Schematic NC/0ohm-1206-±5%-1/4W NC/0ohm-1206-±5%-1/4W CN22 R280 R281 ROUT RSPK 4PIN-2.54-D-H-G CN23 2Kohm-0603-±5%-1/10W 2Kohm-0603-±5%-1/10W R282 5VTV R283 NC/100ohm-0402-±5%-1/16W R331 R284 4K7ohm-0402-±5%-1/16W NC/4K7ohm-0402-±5%-1/16W CKS3.5-KJ25 1Kohm-0402-±5%-1/16W 0.1uF-0402-Y5V-+80%-20%-25V 1Kohm-0402-±5%-1/16W R285 R286 C208 C209 R287 AMP_PSTB 1000pF-0402-X7R-±10%-50V C210 1000pF-0402-X7R-±10%-50V 0.1uF-0603-Y5V-+80%-20%-50V 10Kohm-0402-±5%-1/16W CH8010U-220K-045-G 330pF-0402-X7R-±10%-50V 1uF-0603-Y5V-+80%-20%-10V C211 R288 LOUT AMP-LO C241J334J2SC320...
- Page 30 Schematic 0.1uF-0402-Y5V-+80%-20%-25V 0.1uF-0402-Y5V-+80%-20%-25V 5V_IF 0.1uF-0402-Y5V-+80%-20%-25V NC/120ohm-0402-±1%-1/16W C229 NC/47uF-16V-±20%-4*7 105 ℃ 0.1uF-0402-Y5V-+80%-20%-25V NC/0.1uF-0402-Y5V-+80%-20%-25V NC/4K7ohm-0402-±5%-1/16W R300 +12V NC/6K8ohm-0402-±5%-1/16W NC/2K2ohm-0402-±5%-1/16W NC/2K2ohm-0402-±5%-1/16W R301 NC/0.01uF-0402-X7R-±10%-50V NC/0ohm-0402-±5%-1/16W UTC78D05L NC/150ohm-0402-±5%-1/16W 5VTV NC/33ohm-0402-±5%-1/16W +12V 5VTV NC/0.01uF-0402-X7R-±10%-50V C230 NC/680ohm-0402-±5%-1/16W SAW1 C231 C232 C233 NC/SDFL1608Q1R0KT(F) NC/2SC3779D R302 C235 R303 R304 NC/BA591 C234 R305...
- Page 31 10. Mechanical Exploded View -31-...
- Page 32 Mechanical Exploded View -32-...
- Page 33 Mechanical Exploded View -33-...
- Page 34 Mechanical Exploded View -34-...
- Page 35 DAEWOO CORP. 295 Gongdan-dong Gumi-city Kyenongbuk Korea...